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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

1 Medium

1 of 1

Application +4 | -1

A body of density

\rho

is dropped from rest from height

h

(from the surface of water) into a lake of density of water

\sigma(\sigma>\rho)

. Neglecting all dissipative effects, the acceleration of body while it is in the lake is

View answer and explanation

Correct option: A

g\left(\frac{\sigma}{\rho}-1\right)

upwards

Option A (

g\left(\frac{\sigma}{\rho}-1\right)

upwards) is correct because the net acceleration is the difference between the buoyant force and the weight, divided by the mass, acting upwards.

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